Coach Jim McElwain's Florida Gators entered the first full week of preseason practices Monday. Yet much of the outside focus has been on the sexual assault allegations against star receiver Antonio Callaway. McElwain said he is 'not happy' about the negative attention for his program.

Coach Jim McElwain's Florida Gators entered the first full week of preseason practices Monday. Yet much of the outside focus has been on the sexual assault allegations against star receiver Antonio Callaway. McElwain said he is 'not happy' about the negative attention for his program.

Riles has been the team's starting left guard during preseason practices because 2015 starter Martez Ivey is being held out of contact drills as a precaution following offseason shoulder surgery.

Riles, a redshirt junior, is a converted defensive lineman who started the first six games of last season and appeared in 11 overall.

A native of Georgia, Riles arrived at UF as a defensive tackle in 2013, but switched to the offensive side prior to the 2014 seasons.

Gator Country first reported Riles' injury.

The Gators enter this season seeking vast improvement up front. Florida allowed 45 sacks in 2015, most in the nation. The team at times played three first-year players, including Ivey, and inexperienced players like Riles.

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UF squandered an 11-point lead during the final 10 minutes to hand UF and coach Mike White their toughest loss of the season.

UF squandered an 11-point lead during the final 10 minutes to hand UF and coach Mike White their toughest loss of the season.

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UF squandered an 11-point lead during the final 10 minutes to hand UF and coach Mike White their toughest loss of the season.

UF squandered an 11-point lead during the final 10 minutes to hand UF and coach Mike White their toughest loss of the season.

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UF baseball coach Kevin O’Sullivan said he may have never coached a player who has developed into a force more quickly than sophomore right-hander Tyler Dyson.

UF baseball coach Kevin O’Sullivan said he may have never coached a player who has developed into a force more quickly than sophomore right-hander Tyler Dyson.

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UF coach Kevin O’Sullivan finally led the Gators to a national baseball title following some past disappointments. Now many think he can do it again.

UF coach Kevin O’Sullivan finally led the Gators to a national baseball title following some past disappointments. Now many think he can do it again.

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New UF defensive line coach Sal Sunseri is confident his 10 seasons of NFL experience will help him develop and inspire his players.

New UF defensive line coach Sal Sunseri is confident his 10 seasons of NFL experience will help him develop and inspire his players.

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New UF assistant coach Sal Sunseri is excited to inherit a Gators' defensive line with a lot of talent and potential.

New UF assistant coach Sal Sunseri is excited to inherit a Gators' defensive line with a lot of talent and potential.

Coach Jim McElwain expects the growing pains will pay off in 2016, but losing an experience player like Riles is a bad start to the first full week of camp.

"We talked early, really the thing in all of football, you’re only as good as you are up front — and that’s on both sides of the ball," McElwain said during the offseason. "For us, we need to make sure those young guys who played some last year and got their noses bloodied a little bit — like Martez Ivey, Tyler Jordan and Fred Johnson — learned from the experience.

"I know they are a prideful group and based on what we’ve seen they’ve really worked their tails off."